WO1995018763A1 - Agencement destine a la mise a niveau d'une chaise ascenseur - Google Patents

Agencement destine a la mise a niveau d'une chaise ascenseur Download PDF

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Publication number
WO1995018763A1
WO1995018763A1 PCT/GB1995/000012 GB9500012W WO9518763A1 WO 1995018763 A1 WO1995018763 A1 WO 1995018763A1 GB 9500012 W GB9500012 W GB 9500012W WO 9518763 A1 WO9518763 A1 WO 9518763A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriage
seat
stairlift
rail
along
Prior art date
Application number
PCT/GB1995/000012
Other languages
English (en)
Inventor
Douglas William Glover
Original Assignee
Stannah Stairlifts Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10748388&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1995018763(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stannah Stairlifts Limited filed Critical Stannah Stairlifts Limited
Priority to JP7518363A priority Critical patent/JPH09507201A/ja
Priority to US08/656,259 priority patent/US5720364A/en
Priority to DE69502696T priority patent/DE69502696T2/de
Priority to EP95904646A priority patent/EP0738232B1/fr
Publication of WO1995018763A1 publication Critical patent/WO1995018763A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0838—Levelling gears

Definitions

  • This invention relates to stairlifts and more particularly to an arrangement for maintaining the seat of a stairlift level as its carriage moves along a rail of varying angle of inclination.
  • the rail is able to maintain a constant angle of inclination: in these cases, the seat remains at a constant angle relative to the carriage of the stairlift.
  • the stairs do not rise at a constant rate, for example where the stairs include a landing: in these cases it is necessary for the angle of the seat, relative to at least part of its carriage, to be changed as the carriage moves along the rail, so as to keep the seat level.
  • the seat being pivotally mounted to the carriage and coupled to a lever which follows a guide bar fixed to the main rail of the stairlift: the location of the guide bar on the rail controls the angle of the lever and accordingly the angle of the seat.
  • the location of the guide bar on the rail, at different positions along its length, is therefore critical to ensure that the seat will remain level, and therefore the rail and its guide bar must be tailored to each individual installation.
  • a stairlift comprising a carriage for movement along a fixed rail, a seat pivotally mounted to the carriage, an actuating means for turning the seat relative to its carriage, and control means responsive to the position of the carriage along its rail and to stored data representing the desired angle between the seat and carriage at different positions of the carriage along the rail, to control the actuating means so as to maintain the seat substantially level.
  • the actuating means for turning the seat relative to its carriage comprises an electric motor.
  • this motor is included in a closed-loop servo control.
  • the control means determines the linear position of the carriage along its rail from a count related to the turns made by a drive motor of the carriage: typically this motor drives a pinion wheel meshed with a toothed rack provided along the rail.
  • control means is arranged to make linear interpolations between successive items of the stored data, to provide an uninterrupted demand signal to the seat levelling motor.
  • a safety arrangement is provided, which responds to the seat tilting, relative to the carriage, to more than a predetermined angle, to lock the seat to the carriage.
  • the arrangement may comprise a pin which is spring-biassed to extend through a locating aperture of the seat, but is normally held retracted by a solenoid the circuit to which includes a pair of opposite tilt switches.
  • a controller for preprogramming the control means of the stairlift with its data representing the desired seat-to-carriage angle at different linear positions of the carriage along its rail.
  • the carriage is moved to successive points along the rail and, at each point, the seat is levelled via the controller and then the corresponding linear position and seat- to-carriage angle are written into memory.
  • the control means may include an auto-calibration facility, including means to self- level the seat at successive points along the rail, and then write the corresponding linear position and seat-to-carriage angle into memory.
  • FIGURE 1 is a diagrammatic side view of the carriage of. a stairlift mounted to its fixed rail;
  • FIGURE 2 is a diagram of a closed-loop servo control for a seat levelling motor of the stairlift; and
  • FIGURE 3 is a schematic diagram of a control system of the stairlift, including a preprogramming controller for the linear position and seat-to-carriage angle data.
  • a stairlift comprising a carriage 10 having wheels 12 enabling it to run on a fixed rail 14 installed on a stairway.
  • the carriage includes a drive motor which drives a toothed pinion wheel 16 via a reduction gearbox: the drive motor and its gearbox are indicated at 18.
  • the pinion wheel 16 meshes with a toothed rack 20 formed on the rail: thus energisation of the drive motor, in forwards or reverse directions, produces movement of the carriage along the rail, respectively up or down the stairs.
  • a seat, indicated at 22, is pivotally mounted to the carriage via a support 23 and a horizontal shaft 24, and the carriage further includes a motor which drives a shaft 26 via a gearbox: this motor and its gearbox are indicated at 28, and the two shafts 24 and 26 carry toothed pinion wheels which are meshed with each other as shown.
  • this motor in one direction or the other, changes the angle of the seat relative to its carriage, respectively in one sense or the other.
  • the seat levelling motor M is included in a closed-loop servo control system, preferably a conventional proportional/integral/differential control system, which uses a feedback signal representing the actual angular position of the seat relative to the carriage: this feedback signal may be derived from a potentiometer or other transducer coupled to the rotary seat mounting shaft 24.
  • the seat angle demand signal is derived from a look-up table or map which gives desired angles for different linear positions of the carriage along its rail 14: the actual position of the carriage may be determined, for example by counting the number of turns of the drive motor 18 or the pinion wheel 16.
  • the control system microprocessor makes linear interpolations between successive calibration points of the look-up-table, to ensure continuity of the seat angle demand signal.
  • a person sitting on the seat of the stairlift will depress one push-button to energise the drive- motor in one direction to drive the carriage up the stairs, or a second push-button to energise the drive motor in its opposite direction to drive the carriage down the stairs.
  • the control system provides a demand signal for the levelling motor, according to the position of the carriage 10 along the rail 14, to control the angle of the seat relative to the carriage: as the carriage 10 changes its orientation, due to changes in the angle of the inclination of the rail 14 at different points along its length, the servo-control system changes the angle of the seat 22 relative to the carriage 10, so as to maintain the seat 22 level.
  • FIG. 3 The control system is shown schematically in Figure 3 , together with an arrangement for preprogramming the look-up- table.
  • Figure 3 shows the system microprocessor 30 and look-up table memory 32 together with the seat levelling motor M and carriage drive motor Ml.
  • a transducer T provides the microprocessor with a signal from which it is able to determine the linear position of the carriage 10 along the rail 14 and a transducer T f provides the microprocessor with the feedback signal representing the actual angle of the seat relative to the carriage.
  • the user's command signal is applied at C, to drive the carriage either up or down the rail.
  • a control panel 40 is plugged into the control system, as shown, and used to move the carriage to successive positions along the rail, the seat being manually levelled at each point and then the corresponding linear carriage position and seat-to-carriage angle being stored in the memory.
  • the carriage movement from one point to the next may be produced via the usual control push-button of the stairlift, or using corresponding keys on the preprogramming control panel 40, as indicated by the dotted line.
  • a key on the control panel 40 is actuated to provide a signal to the microprocessor over an input B, to turn the seat to a level position.
  • an "enter” key on the control panel is actuated to provide a signal to the microprocessor, over input A, causing the microprocessor to store the corresponding linear position and seat-to-carriage angle in its memory.
  • the stairlift may include an auto-calibration facility.
  • the seat is fitted with a level transducer, for example a pendulum coupled to a potentiometer, which gives an output signal according to any inclination of the seat from its level position.
  • the stairlift can be set to an auto-calibration mode, in which its drive motor is energised to drive it from one end of the rail to the other: at successive points along the rail, the carriage stops and the seat levels itself via its levelling motor; when the level transducer indicates that the seat is level, the microprocessor stores the corresponding linear position and seat-to-carriage angle in its memory.
  • the stairlift may include a safety arrangement comprising a locking pin 52 which is spring-loaded to extend through a locating aperture 53 in its support 23, thus locking the seat relative to its carriage 10.
  • the seat is provided with a pair of mercury tilt switches 54,55 which normally close a circuit to a solenoid to hold the pin 52 retracted out of the aperture 53: if the seat tilts to a predetermined angle in one sense or the other, pin 52 is extended through the locating aperture 53 by its spring.
  • the safety arrangement therefore prevents the seat from tilting to any angle, greater than that predetermined angle, relative to the carriage: preferably at the same time as locking the seat, the safety arrangement disables the stairlift. The arrangement thus protects against any failure of the automatic levelling system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

Une chaise ascenseur comprend un chariot (10) destiné à se déplacer le long d'un rail fixe (14) dont l'angle d'inclinaison varie sur toute sa longueur, un siège (22) monté pivotant sur le chariot, ainsi qu'un moyen d'actionnement (18) servant à tourner le siège par rapport au chariot. Un moyen de commande de la chaise ascenseur répond à la position du chariot (10) le long du rail (14) de celui-ci, ainsi qu'à des données mises en mémoire représentant l'angle désiré entre le siège (22) et le chariot (10) en différentes positions le long du rail, afin de commander audit mécanisme (18) de maintenir le siège (22) sensiblement plan lors du déplacement du chariot (10) le long du rail (14).
PCT/GB1995/000012 1994-01-05 1995-01-05 Agencement destine a la mise a niveau d'une chaise ascenseur WO1995018763A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7518363A JPH09507201A (ja) 1994-01-05 1995-01-05 階段昇降機の水平装置
US08/656,259 US5720364A (en) 1994-01-05 1995-01-05 Stairlift levelling arrangement
DE69502696T DE69502696T2 (de) 1994-01-05 1995-01-05 Horizontalausrichtanordnung für treppenaufzüge
EP95904646A EP0738232B1 (fr) 1994-01-05 1995-01-05 Agencement destine a la mise a niveau d'une chaise ascenseur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9400056A GB9400056D0 (en) 1994-01-05 1994-01-05 Stairlift levelling arrangement
GB9400056.9 1994-01-05

Publications (1)

Publication Number Publication Date
WO1995018763A1 true WO1995018763A1 (fr) 1995-07-13

Family

ID=10748388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/000012 WO1995018763A1 (fr) 1994-01-05 1995-01-05 Agencement destine a la mise a niveau d'une chaise ascenseur

Country Status (7)

Country Link
US (1) US5720364A (fr)
EP (1) EP0738232B1 (fr)
JP (1) JPH09507201A (fr)
CA (1) CA2177828A1 (fr)
DE (1) DE69502696T2 (fr)
GB (1) GB9400056D0 (fr)
WO (1) WO1995018763A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007770C2 (nl) * 1997-12-11 1999-06-14 Thyssen De Reus Bv Lift.
WO1999046198A1 (fr) * 1998-03-09 1999-09-16 Bison Bede Limited Commande d'orientation de siege pour monte-escalier
NL1010229C2 (nl) * 1998-10-01 2000-04-04 Ooms Otto Bv Liftsamenstel en werkwijze voor het verplaatsen van een lift.
NL1026498C2 (nl) * 2004-06-24 2005-12-28 Free Lift B V Hellinglifteenheid met blokkeerinrichting en blokkeerinrichting bestemd voor hellinglifteenheid.
WO2008142372A1 (fr) * 2007-05-18 2008-11-27 Stannah Stairlifts Limited Améliorations apportées aux monte-escaliers ou relatives à ceux-ci
GB2484709A (en) * 2010-10-21 2012-04-25 Handicare Accessibility Ltd Stairlift with seat leveling, seat inclination limiting and improved access
US9212025B2 (en) 2009-11-24 2015-12-15 Acorn Mobility Services Limited Kit for the guide of a stairlift
EP3160888B1 (fr) 2014-06-27 2018-08-15 Handicare Stairlifts B.V. Monte-escalier
GB2565076A (en) * 2017-07-31 2019-02-06 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
WO2020079395A3 (fr) * 2018-10-18 2020-07-02 Stannah Stairlifts Limited Monte-escalier et procédé de fonctionnement d'un monte-escalier
WO2022049392A1 (fr) 2020-09-07 2022-03-10 Stannah Stairlifts Limited Monte-escalier

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2368574A (en) * 2000-08-10 2002-05-08 Sunrise Medical Ltd A carriage for a stairlift assembly and a stairlift assembly
GB0218653D0 (en) * 2002-08-10 2002-09-18 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
GB0218652D0 (en) * 2002-08-10 2002-09-18 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
GB2409446B (en) * 2003-12-10 2006-08-30 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
US7103935B2 (en) * 2004-01-08 2006-09-12 David Hill Marine gangway to enable handicapped users to move between floating and fixed landings and related methods
NL1025571C2 (nl) * 2004-02-26 2005-08-29 Thyssenkrupp Accessibility B V Traplift.
GB0404643D0 (en) 2004-03-02 2004-04-07 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
US7509187B2 (en) * 2005-02-28 2009-03-24 The Braun Corporation Wheelchair lift with a rotary sensor used to determine lift position
GB0602618D0 (en) * 2006-02-09 2006-03-22 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
GB2488051B (en) * 2008-03-01 2012-11-21 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
US20100274409A1 (en) * 2009-04-23 2010-10-28 Stannah Stairlifts Limited Stairlifts
EP2243740B1 (fr) 2009-04-23 2012-01-04 Stannah Stairlifts Limited Améliorations de ou associées aux fauteuils monte-escalier
CN102259780B (zh) * 2011-03-17 2013-11-27 太仓市康辉科技发展有限公司 楼梯曲线导轨爬升机器人的控制系统
GB2495953B (en) * 2011-10-26 2015-11-18 Acorn Mobility Services Ltd Lift system
GB2535542A (en) 2015-02-23 2016-08-24 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
GB2536909A (en) 2015-03-30 2016-10-05 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
CN105347135B (zh) * 2015-08-28 2018-01-30 湖北安步电梯科技有限公司 一种楼道电梯调平机构
NL2017842B1 (en) * 2016-11-23 2018-05-28 Ooms Otto Bv An apparatus for transporting a load from a first to a second level, in particular a stairlift
CN106585434B (zh) * 2017-02-17 2020-04-14 秦皇岛鸿鼎轨道交通设备有限公司 座椅角度自动调节装置
GB2585655B (en) 2019-07-09 2023-04-12 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
NL2025457B1 (en) * 2020-04-29 2021-11-09 Otolift Trapliften B V An apparatus for transporting a load from a first to a second level, in particular a stairlift
NL2033120B1 (en) * 2022-09-23 2024-03-29 Otolift Trapliften B V Apparatus for transporting a load, in particular a stairlift
NL2033908B1 (en) * 2023-01-04 2024-07-16 Handicare Stairlifts B V Stairlift comprising a safety system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138712A1 (de) * 1980-09-30 1982-04-22 Toyota Jidosha Kogyo K.K., Toyota, Aichi "geraet zur optimalen winkeleinstellung von fahrzeugvorrichtungen"
GB2168019A (en) * 1984-11-16 1986-06-11 David Louis Halsey Person Bogie for a stairlift
US5230405A (en) * 1991-11-13 1993-07-27 Michael Roman Bruno Stairway chairlift device
EP0560433A1 (fr) * 1992-03-09 1993-09-15 Liftenfabriek Brinkman Jan Hamer B.V. Installation d'ascenseur d'escalier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB560433A (en) * 1941-11-12 1944-04-04 Goldner Richard Improved sliding clasp fastener
US4811226A (en) * 1980-09-30 1989-03-07 Toyota Jidosha Kogyo Kabushiki Kaisha Optimum angle adjusting apparatus for vehicle equipments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138712A1 (de) * 1980-09-30 1982-04-22 Toyota Jidosha Kogyo K.K., Toyota, Aichi "geraet zur optimalen winkeleinstellung von fahrzeugvorrichtungen"
GB2168019A (en) * 1984-11-16 1986-06-11 David Louis Halsey Person Bogie for a stairlift
US5230405A (en) * 1991-11-13 1993-07-27 Michael Roman Bruno Stairway chairlift device
EP0560433A1 (fr) * 1992-03-09 1993-09-15 Liftenfabriek Brinkman Jan Hamer B.V. Installation d'ascenseur d'escalier

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007770C2 (nl) * 1997-12-11 1999-06-14 Thyssen De Reus Bv Lift.
WO1999029611A1 (fr) * 1997-12-11 1999-06-17 Thyssen De Reus B.V. Monte-escalier
CN1097025C (zh) * 1997-12-11 2002-12-25 帝森·德雷乌斯公司 阶梯升降机
US7051841B1 (en) 1997-12-11 2006-05-30 Thyssen Dereus B.V. Stairlift
WO1999046198A1 (fr) * 1998-03-09 1999-09-16 Bison Bede Limited Commande d'orientation de siege pour monte-escalier
NL1010229C2 (nl) * 1998-10-01 2000-04-04 Ooms Otto Bv Liftsamenstel en werkwijze voor het verplaatsen van een lift.
WO2000020319A1 (fr) * 1998-10-01 2000-04-13 Otto Ooms B.V. Monte-personne/charge et son procede de deplacement
NL1026498C2 (nl) * 2004-06-24 2005-12-28 Free Lift B V Hellinglifteenheid met blokkeerinrichting en blokkeerinrichting bestemd voor hellinglifteenheid.
WO2006001694A2 (fr) * 2004-06-24 2006-01-05 Freelift B.V. Unite de levage inclinee avec dispositif de verrouillage ainsi que dispositif de verrouillage destine a une unite de levage inclinee
WO2006001694A3 (fr) * 2004-06-24 2006-04-20 Free Lift B V Unite de levage inclinee avec dispositif de verrouillage ainsi que dispositif de verrouillage destine a une unite de levage inclinee
WO2008142372A1 (fr) * 2007-05-18 2008-11-27 Stannah Stairlifts Limited Améliorations apportées aux monte-escaliers ou relatives à ceux-ci
US9212025B2 (en) 2009-11-24 2015-12-15 Acorn Mobility Services Limited Kit for the guide of a stairlift
WO2012052725A3 (fr) * 2010-10-21 2012-07-26 Handicare Accessibility Limited Monte-escalier
GB2484709B (en) * 2010-10-21 2014-06-04 Handicare Accessibility Ltd Stairlift
GB2508764A (en) * 2010-10-21 2014-06-11 Handicare Accessibility Ltd Stairlift with seat levelling means including magnets
GB2508764B (en) * 2010-10-21 2014-09-10 Handicare Accessibility Ltd Stairlift
GB2484709A (en) * 2010-10-21 2012-04-25 Handicare Accessibility Ltd Stairlift with seat leveling, seat inclination limiting and improved access
US9751725B2 (en) 2010-10-21 2017-09-05 Handicare Accessibility Limited Stairlift
EP3160888B1 (fr) 2014-06-27 2018-08-15 Handicare Stairlifts B.V. Monte-escalier
GB2565076A (en) * 2017-07-31 2019-02-06 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
US11261060B2 (en) 2017-07-31 2022-03-01 Stannah Stairlifts Limited Stairlifts
GB2565076B (en) * 2017-07-31 2022-03-02 Stannah Stairlifts Ltd Improvements in or relating to stairlifts
WO2020079395A3 (fr) * 2018-10-18 2020-07-02 Stannah Stairlifts Limited Monte-escalier et procédé de fonctionnement d'un monte-escalier
WO2022049392A1 (fr) 2020-09-07 2022-03-10 Stannah Stairlifts Limited Monte-escalier

Also Published As

Publication number Publication date
EP0738232A1 (fr) 1996-10-23
US5720364A (en) 1998-02-24
CA2177828A1 (fr) 1995-07-13
JPH09507201A (ja) 1997-07-22
GB9400056D0 (en) 1994-03-02
DE69502696D1 (de) 1998-07-02
DE69502696T2 (de) 1999-01-07
EP0738232B1 (fr) 1998-05-27

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